1. Burwell S. CDC Opiod Prescribing Guideline Call: HHS.gov; 2016 [cited 2016 May 6, 2016]. http://www.hhs.gov/about/leadership/secretary/speeches/2016/cdc-opioid-prescribing-guideline-call.html.
2. Association AP. Opioid Use Disorder—Diagnostic Criteria. In: Association AP, editor. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition. Fifth ed. 1–92013. p. 1–9.
3. Katz J. Drug deaths in American are rising fasteer than ever New York City: The New York Times Company; 2017 [cited 2017 07/25/2017]. https://www.nytimes.com/interactive/2017/06/05/upshot/opioid-epidemic-drug-overdose-deaths-are-rising-faster-than-ever.html
4. Crime UNOoDa. World Drug Report 2015.
5. Increases in Drug and Opioid Overdose Deaths—United States, 2000–2014;RA Rudd;MMWR Morbidity and mortality weekly report,2016